Sasuke and his team head for the northern hideout to recruit their next member, Jugo. On the way, Karin explains that the northern hideout is a site for conducting horrific human experiments. A ninja with abnormal homicidal impulses, Jugo is the sole carrier of the enzyme necessary to create Orochimaru’s curse mark. The group ready themselves as they arrive at the northern hideout. But they discover that upon receiving word of Orochimaru’s death, the curse mark test subjects have started a massive riot.